Very well. To communicate this commitment to its researchers, it might be a good idea for each institution to provide an Open Science Manifesto as a single point of reference, summarizing which declarations it has signed, how it supports open science in practice, etc. One institute at my university issued this manifesto: https://www.cit-ec.de/en/open-science/manifesto

How would you generalize this text to cover an entire university? Are there more sample texts like this I could consult? Who are the stakeholders one should get into the boat?

Ask Open Science used to be called Open Science Q&A but we changed the name when we registered the domain ask-open-science.org. Everything else stays the same: We are still hosted by Bielefeld University Library.